pidgin/pidgin

Add the 2.14.0 and 2.14.1 ChangeLog entries to the ChangeLog and remove the entries from the 3.0.0 entry.

Testing Done:
None, it's the ChangeLog.

Reviewed at https://reviews.imfreedom.org/r/102/
libpurple/data/purple-url-handler.desktop.in
libpurple/protocols/null/nullprpl.c
pidgin/data/im.pidgin.Pidgin.desktop.in
sub/libpurple/data/purple-url-handler.desktop.in
sub/libpurple/protocols/null/nullprpl.c
sub/pidgin/data/im.pidgin.Pidgin.desktop.in